<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>背景图片综合案例-五彩导航</title>
    <style>
      .nav a {
        display: inline-block;
        width: 120px;
        height: 58px;
        background-color: pink;
        text-align: center;
        line-height: 48px;
        color: #fff;
        text-decoration: none;
      }

      .nav .bg1 {
        background: url(images/bg1.png) no-repeat;
      }

      .nav .bg1:hover {
        background-image: url(images/bg11.png);
      }

      .nav .bg2 {
        background: url(images/bg2.png) no-repeat;
      }

      .nav .bg2:hover {
        background-image: url(images/bg22.png);
      }

      .nav .bg3 {
        background: url(images/bg3.jpg) no-repeat;
      }

      .nav .bg3:hover {
        background-image: url(images/bg3.png);
      }

      .nav .bg4 {
        background: url(images/bg4.png) no-repeat;
      }

      .nav .bg4:hover {
        background-image: url(images/bg5.png);
      }
    </style>
  </head>

  <body>
    <div class="nav">
      <a href="#" class="bg1">五彩导航</a>
      <a href="#" class="bg2">五彩导航</a>
      <a href="#" class="bg3">五彩导航</a>
      <a href="#" class="bg4">五彩导航</a>
    </div>
  </body>
</html>
